package com.heima.article.service.impl;

import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.article.mapper.ApArticleConfigMapper;
import com.heima.article.mapper.ApArticleContentMapper;
import com.heima.article.mapper.ApArticleMapper;
import com.heima.article.mapper.AuthorMapper;
import com.heima.article.service.ApArticleService;
import com.heima.article.service.GeneratePageService;
import com.heima.common.exception.CustException;
import com.heima.feigns.AdminFeign;
import com.heima.feigns.WemediaFeign;
import com.heima.model.admin.pojos.AdChannel;
import com.heima.model.article.dtos.ArticleHomeDTO;
import com.heima.model.article.pojos.ApArticle;
import com.heima.model.article.pojos.ApArticleConfig;
import com.heima.model.article.pojos.ApArticleContent;
import com.heima.model.article.pojos.ApAuthor;
import com.heima.model.common.constants.article.ArticleConstants;
import com.heima.model.common.constants.message.NewsUpOrDownConstants;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.pojos.WmNews;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.Date;
import java.util.List;


@Service
@Slf4j
public class ApArticleServiceImpl extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {

    @Autowired
    ApArticleMapper apArticleMapper;
    @Autowired
    StringRedisTemplate redisTemplate;

    @Value("${file.oss.web-site}")
    String webSite;

    @Autowired
    GeneratePageService generatePageService;

    @Value("${file.minio.readPath}")
    private String readPath;

    @Autowired
    RabbitTemplate rabbitTemplate;

    @Override
    public void publishArticle(Integer newsId) {
        // 1. 查询并检查自媒体文章  wmNews
        WmNews wmNews = getWmNews(newsId);
        // 2. 封装 ApArticle
        ApArticle apArticle = getApArticle(wmNews);
        // 3 保存或修改aeticle信息
        saveOrUpdateArticle(apArticle);
        // 4 保存关联配置和内容信息
        saveConfigAndContent(wmNews, apArticle);
        // 5 文章页面静态化
        generatePageService.generateArticlePage(wmNews.getContent(),apArticle);
        // 6 更新 wmNews状态 改为9 并设置articleId
        updateWmNews(newsId, wmNews, apArticle);
        // 7  通知es索引库添加文章索引
        rabbitTemplate.convertAndSend(NewsUpOrDownConstants.NEWS_UP_FOR_ES_QUEUE,apArticle.getId());
        log.info("文章发布成功，并发送索引库更新通知   文章id: {}",apArticle.getId());

    }

    @Override
    public ResponseResult load(Short loadtype, ArticleHomeDTO dto) {
        // 检查参数
        Integer size = dto.getSize();
        if (size == null || size <= 0) {
            dto.setSize(10);
        }
        // 频道
        if (StringUtils.isBlank(dto.getTag())) {
            dto.setTag(ArticleConstants.DEFAULT_TAG);
        }

        if (dto.getMinBehotTime() == null) {
            dto.setMinBehotTime(new Date());
        }
        if (dto.getMaxBehotTime() == null) {
            dto.setMaxBehotTime(new Date());
        }
        // 类型判断
        if (!loadtype.equals(ArticleConstants.LOADTYPE_LOAD_NEW) &&
                !loadtype.equals(ArticleConstants.LOADTYPE_LOAD_NEW)) {
            loadtype = ArticleConstants.LOADTYPE_LOAD_MORE;
        }
        // 执行查询
        List<ApArticle> list = apArticleMapper.loadArticleList(dto, loadtype);
        for (ApArticle article : list) {
            article.setStaticUrl(readPath+article.getStaticUrl());
        }
        ResponseResult result = ResponseResult.okResult(list);
        result.setHost(webSite);
        // 返回结果
        return result;
    }

    @Override
    public ResponseResult load2(Short loadtypeLoadMore, ArticleHomeDTO dto, boolean firstPage) {
        if (firstPage) {
            // redis
            String articleListJson = (String) redisTemplate.opsForValue().get(ArticleConstants.HOT_ARTICLE_FIRST_PAGE + dto.getTag());
            if (StringUtils.isNotBlank(articleListJson)) {
                List<ApArticle> apArticles = JSON.parseArray(articleListJson, ApArticle.class);
                for (ApArticle apArticle : apArticles) {
                    apArticle.setStaticUrl(readPath + apArticle.getStaticUrl());
                }
                ResponseResult result = ResponseResult.okResult(apArticles);
                result.setHost(webSite);

                return result;
            }
        }

        return load(loadtypeLoadMore, dto);
    }

    /**
     * 修改自媒体文章
     *
     * @param newsId
     * @param wmNews
     * @param apArticle
     */
    private void updateWmNews(Integer newsId, WmNews wmNews, ApArticle apArticle) {
        wmNews.setStatus(WmNews.Status.PUBLISHED.getCode());
        wmNews.setArticleId(apArticle.getId());
        ResponseResult result = wemediaFeign.updateWmNews(wmNews);
        if (!result.checkCode()) {
            log.error("文章发布失败 远程调用修改文章接口失败， 不予发布 , 文章id : {} ", newsId);
            CustException.cust(AppHttpCodeEnum.REMOTE_SERVER_ERROR, "远程调用修改文章接口失败");
        }
    }

    /**
     * 保存关联配置和内容信息
     *
     * @param wmNews
     * @param apArticle
     */
    private void saveConfigAndContent(WmNews wmNews, ApArticle apArticle) {
        // 添加配置信息
        ApArticleConfig apArticleConfig = new ApArticleConfig();
        apArticleConfig.setArticleId(apArticle.getId());
        apArticleConfig.setIsComment(true);
        apArticleConfig.setIsForward(true);
        apArticleConfig.setIsDown(false);
        apArticleConfig.setIsDelete(false);
        apArticleConfigMapper.insert(apArticleConfig);
        // 添加文章详情
        ApArticleContent content = new ApArticleContent();
        content.setArticleId(apArticle.getId());
        content.setContent(wmNews.getContent());
        apArticleContentMapper.insert(content);


    }

    /**
     * 保存或修改aeticle信息
     *
     * @param apArticle
     */
    @Autowired
    ApArticleConfigMapper apArticleConfigMapper;

    @Autowired
    ApArticleContentMapper apArticleContentMapper;

    private void saveOrUpdateArticle(ApArticle apArticle) {
        // 判断wmNews之前是否关联 articleId
        if (apArticle.getId() == null) {
            // 无关联  新增 article
            apArticle.setCollection(0);
            apArticle.setLikes(0);
            apArticle.setComment(0);
            apArticle.setViews(0);
            // 保存文章
            save(apArticle);
        } else {
            ApArticle article = getById(apArticle.getId());
            // 有关联  修改 article
            if (article == null) {
                CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST, "关联的文章不存在");
            }
            // 修改文章  删除之前关联的配置信息   内容信息
            updateById(article);
            // 删除关联的配置信息
            apArticleConfigMapper.delete(Wrappers.<ApArticleConfig>lambdaQuery()
                    .eq(ApArticleConfig::getArticleId, apArticle.getId()));
            // 删除关联的内容信息
            apArticleContentMapper.delete(Wrappers.<ApArticleContent>lambdaQuery()
                    .eq(ApArticleContent::getArticleId, apArticle.getId()));
        }

    }

    /**
     * 封装 ApArticle
     *
     * @param wmNews
     * @return
     */
    @Autowired
    AdminFeign adminFeign;

    @Autowired
    AuthorMapper authorMapper;

    private ApArticle getApArticle(WmNews wmNews) {
        ApArticle apArticle = new ApArticle();
        // 拷贝属性
        BeanUtils.copyProperties(wmNews, apArticle);
        apArticle.setId(wmNews.getArticleId());
        // 普通文章
        apArticle.setFlag((byte) 0);
        // 布局
        apArticle.setLayout(wmNews.getType());
        // 远程查询频道信息
        ResponseResult<AdChannel> result = adminFeign.findOne(wmNews.getChannelId());
        if (!result.checkCode()) {
            log.error("文章发布失败 未查询到相关频道,不予发布, 文章id:{}", wmNews.getId());
            CustException.cust(AppHttpCodeEnum.REMOTE_SERVER_ERROR, "远程调用查询频道出现异常");
        }
        AdChannel adChannel = result.getData();
        if (adChannel == null) {
            log.error("文章发布失败 未查询到相关频道信息,不予发布 文章id:{}", wmNews.getId());
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST, "未找到数据");
        }
        // 设置作者信息
        ApAuthor author = authorMapper.selectOne(Wrappers.<ApAuthor>lambdaQuery()
                .eq(ApAuthor::getWmUserId, wmNews.getUserId()));
        if (author == null) {
            log.error("文章发布失败 未查询到相关作者信息， 不予发布 , 文章id : {}  自媒体用户id : {}", wmNews.getId(), wmNews.getUserId());
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST, "根据自媒体用户，查询关联作者信息失败");
        }
        // 设置作者id和名字
        apArticle.setAuthorId(Long.valueOf(author.getId()));
        apArticle.setAuthorName(author.getName());
        return apArticle;
    }

    /**
     * 查询自媒体文章
     *
     * @param newsId 文章id
     * @return
     */
    @Autowired
    private WemediaFeign wemediaFeign;

    private WmNews getWmNews(Integer newsId) {
        // 远程调用
        ResponseResult<WmNews> newsResult = wemediaFeign.findWmNewsById(newsId);
        if (newsId == null) {
            log.error("文章发布失败 远程调用自媒体文章接口失败  文章id: {}", newsId);
            CustException.cust(AppHttpCodeEnum.REMOTE_SERVER_ERROR, "远程调用自媒体文章接口失败");
        }
        // 获取WmNews对象
        WmNews news = newsResult.getData();
        if (news == null) {
            log.error("文章发布失败 未获取到自媒体文章信息  文章id: {}", newsId);
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST, "未查询到自媒体文章");
        }
        // 判断状态是否为 4 或 8， 如果不是  不处理
        short status = news.getStatus().shortValue();
        if (status != WmNews.Status.ADMIN_SUCCESS.getCode() && status != WmNews.Status.SUCCESS.getCode()) {
            log.error("文章发布失败 文章状态不为 4 或 8， 不予发布 , 文章id : {}", newsId);
            CustException.cust(AppHttpCodeEnum.DATA_NOT_ALLOW, "自媒体文章状态错误");
        }
        return news;
    }
}